Add User

# useradd -M hyperglass-frr-api
# usermod -L hyerglass-frr-api

# chown -R hyerglass-frr-api:hyerglass-frr-api /opt/hyperglass-frr

iptables -A INPUT -i loopback1 -s 199.34.92.72 -p tcp --dport 8080 -J ACCEPT

Add user to fttvty group:

# usermod -a -G <group> <user>